JF Bastien [Tue, 14 Jul 2015 21:13:29 +0000 (21:13 +0000)]
WebAssembly: add basic int/fp instruction codegen.
Summary: This patch has the most basic instruction codegen for 32 and 64 bit int/fp.
Reviewers: sunfish
Subscribers: llvm-commits, jfb
Differential Revision: http://reviews.llvm.org/D11193
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242201
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Krzysztof Parzyszek [Tue, 14 Jul 2015 21:03:24 +0000 (21:03 +0000)]
Fix NDEBUG build warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242200
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Tim Northover [Tue, 14 Jul 2015 21:03:18 +0000 (21:03 +0000)]
GVN: tolerate an instruction being replaced without existing in the leaderboard
Sometimes an incidentally created instruction can duplicate a Value used
elsewhere. It then often doesn't end up in the leader table. If it's later
removed, we attempt to remove it from the leader table and segfault.
Instead we should just ignore the removal request, which won't cause any
problems. The reverse situation, where the original instruction is replaced by
the new one (which you might think could leave the leader table empty) cannot
occur, because the incidental instruction will never be found in the first
place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242199
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Hans Wennborg [Tue, 14 Jul 2015 20:15:15 +0000 (20:15 +0000)]
test-release.sh: Remove the InstallDir parameter from configure_llvmCore
After r242187, it's never set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242194
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Krzysztof Parzyszek [Tue, 14 Jul 2015 20:11:28 +0000 (20:11 +0000)]
Fix Windows build: replace __func__ with LLVM_FUNCTION_NAME
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242192
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Bruno Cardoso Lopes [Tue, 14 Jul 2015 20:09:34 +0000 (20:09 +0000)]
[MMX] Use the appropriate instructions for GR64 <-> VR64 copies.
MOVSDto64rr and MOV64toSDrr are defined to convert between FR64 (%xmm)
<-> GR64 registers, not VR64 (%mm) <-> GR64. This is wrong.
I found this by inspection and could not find a suitable testcase for it
since (1) we don't handle MMX bitcasts in Peephole optimizer as to
generate COPYs that (2) could be expanded back to the appropriate x86
instruction in ExpandPostRA.
Switch to use the appropriate instructions: MMX_MOVD64from64rr and
MMX_MOVD64to64rr here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242191
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Hal Finkel [Tue, 14 Jul 2015 20:02:02 +0000 (20:02 +0000)]
[PowerPC] Fix the PPCInstrInfo::getInstrLatency implementation
PowerPC uses itineraries to describe processor pipelines (and dispatch-group
restrictions for P7/P8 cores). Unfortunately, the target-independent
implementation of TII.getInstrLatency calls ItinData->getStageLatency, and that
looks for the largest cycle count in the pipeline for any given instruction.
This, however, yields the wrong answer for the PPC itineraries, because we
don't encode the full pipeline. Because the functional units are fully
pipelined, we only model the initial stages (there are no relevant hazards in
the later stages to model), and so the technique employed by getStageLatency
does not really work. Instead, we should take the maximum output operand
latency, and that's what PPCInstrInfo::getInstrLatency now does.
This caused some test-case churn, including two unfortunate side effects.
First, the new arrangement of copies we get from function parameters now
sometimes blocks VSX FMA mutation (a FIXME has been added to the code and the
test cases), and we have one significant test-suite regression:
SingleSource/Benchmarks/BenchmarkGame/spectral-norm
56.4185% +/- 18.9398%
In this benchmark we have a loop with a vectorized FP divide, and it with the
new scheduling both divides end up in the same dispatch group (which in this
case seems to cause a problem, although why is not exactly clear). The grouping
structure is hard to predict from the bottom of the loop, and there may not be
much we can do to fix this.
Very few other test-suite performance effects were really significant, but
almost all weakly favor this change. However, in light of the issues
highlighted above, I've left the old behavior available via a
command-line flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242188
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Dan Liew [Tue, 14 Jul 2015 19:46:19 +0000 (19:46 +0000)]
Fix several issues with the test-release.sh script
* Use the default install prefix (/usr/local) and use DESTDIR instead to
set a temporary install location for tarballing. This is the correct
way to package binary releases (otherwise the temporary install path
ends up in files in the binary release).
* Remove ``-disable-clang`` option. It did not work correctly
(tarballing assumed phase 3 was run) and when doing a release
we should always be doing a three-phased build and test.
Note: Technically we should only be using DESTDIR for the third phase
and use --prefix for the first and second phase because we run the built
clang from phase 1 and 2 (and in general an application's behaviour
may depend on the install prefix). However in the case of clang it
seems to not care what the install prefix was so to simplify the script
we use DESTDIR for all three stages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242187
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Krzysztof Parzyszek [Tue, 14 Jul 2015 19:30:21 +0000 (19:30 +0000)]
[Hexagon] Generate instructions for operations on predicate registers
Convert logical operations on general-purpose registers to the correspon-
ding operations on predicate registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242186
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Keno Fischer [Tue, 14 Jul 2015 19:22:51 +0000 (19:22 +0000)]
[CodeGen] Force emission of personality directive if explicitly specified
Summary:
Before this change, personality directives were not emitted
if there was no invoke left in the function (of course until
recently this also meant that we couldn't know what
the personality actually was). This patch forces personality directives
to still be emitted, unless it is known to be a noop in the absence of
invokes, or the user explicitly specified `nounwind` (and not
`uwtable`) on the function.
Reviewers: majnemer, rnk
Subscribers: rnk, llvm-commits
Differential Revision: http://reviews.llvm.org/D10884
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242185
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Richard Smith [Tue, 14 Jul 2015 18:40:59 +0000 (18:40 +0000)]
Add support for on-disk hash table lookup with a known hash, for situations where the same key will be looked up in multiple tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242179
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Yaron Keren [Tue, 14 Jul 2015 18:33:55 +0000 (18:33 +0000)]
Teach config.guess that MSYS exists.
We might not want to upgrade config.guess to the current
version due to the license change from GPL2 to GPL3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242178
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Matt Arsenault [Tue, 14 Jul 2015 18:20:33 +0000 (18:20 +0000)]
AMDGPU: Avoid using 64-bit shift for i64 (shl x, 32)
This can be done only with moves which theoretically
will optimize better later.
Although this transform increases the instruction count,
it should be code size / cycle count neutral in the worst
VALU case. It also seems to slightly improve a couple
of testcases due to other DAG combines this exposes.
This is probably slightly worse for the SALU case, so
it might be better to handle this during moveToVALU,
although then you lose some simplifications like
the load width reducing in the simple testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242177
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Matt Arsenault [Tue, 14 Jul 2015 17:57:36 +0000 (17:57 +0000)]
AMDGPU/SI: Fix read2 merging into a super register.
If the read2 produced was supposed to be writing into a
super register, it would use the wrong subregister indices.
Fix this by inserting copies, so we only ever write to a vreg_64.
Run the register coalescer again to clean this up, although this
isn't ideal and often does result in an extra move.
Also remove the assert that offset1 > offset0.
There isn't a real reason to not allow this other than a minor
convenience in the compiler, and it doesn't seem worth the effort
of avoiding it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242174
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Matthias Braun [Tue, 14 Jul 2015 17:52:07 +0000 (17:52 +0000)]
MachineRegisterInfo: Remove UsedPhysReg infrastructure
We have a detailed def/use lists for every physical register in
MachineRegisterInfo anyway, so there is little use in maintaining an
additional bitset of which ones are used.
Removing it frees us from extra book keeping. This simplifies
VirtRegMap.
Differential Revision: http://reviews.llvm.org/D10911
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242173
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David Blaikie [Tue, 14 Jul 2015 17:40:53 +0000 (17:40 +0000)]
Avoid MSVC-incompatible use of init list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242170
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Matthias Braun [Tue, 14 Jul 2015 17:38:17 +0000 (17:38 +0000)]
RAGreedy: Keep track of allocated PhysRegs internally
Do not use MachineRegisterInfo::setPhysRegUsed()/isPhysRegUsed()
anymore. This bitset changes function-global state and is set by the
VirtRegRewriter anyway.
Simply use a bitvector private to RAGreedy.
Differential Revision: http://reviews.llvm.org/D10910
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242169
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Nemanja Ivanovic [Tue, 14 Jul 2015 17:25:20 +0000 (17:25 +0000)]
Add missing builtins to the PPC back end for ABI compliance (vol. 4)
This patch corresponds to review:
http://reviews.llvm.org/D11183
Back end portion of the fourth round of additions to altivec.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242167
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Tim Northover [Tue, 14 Jul 2015 17:23:55 +0000 (17:23 +0000)]
ARM: add at least one real test for r242123.
The ones committed were orthogonal to the change and would have passed before
that revision. What it *did* do was prevent an assertion failure when
generating object files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242166
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Matthias Braun [Tue, 14 Jul 2015 17:17:13 +0000 (17:17 +0000)]
PrologEpilogInserter: Rewrite API to determine callee save regsiters.
This changes TargetFrameLowering::processFunctionBeforeCalleeSavedScan():
- Rename the function to determineCalleeSaves()
- Pass a bitset of callee saved registers by reference, thus avoiding
the function-global PhysRegUsed bitset in MachineRegisterInfo.
- Without PhysRegUsed the implementation is fine tuned to not save
physcial registers which are only read but never modified.
Related to rdar://
21539507
Differential Revision: http://reviews.llvm.org/D10909
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242165
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Tim Northover [Tue, 14 Jul 2015 17:07:29 +0000 (17:07 +0000)]
AArch64: add rev64 alias for 64-bit rev instruction.
It could be useful to assembly programmers and makes the permitted variants a
little more uniform.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242164
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Krzysztof Parzyszek [Tue, 14 Jul 2015 17:07:24 +0000 (17:07 +0000)]
[Hexagon] Generate "extract" instructions more aggressively
Generate extract instructions (via intrinsics) before the DAG combiner
folds shifts into unrecognizable forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242163
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Rafael Espindola [Tue, 14 Jul 2015 16:55:13 +0000 (16:55 +0000)]
llvm-ar: Don't try to extract from thin archives.
This matches the gnu ar behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242162
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Hans Wennborg [Tue, 14 Jul 2015 16:39:01 +0000 (16:39 +0000)]
ARMAsmParser: Take MCInst param by const-ref
(Broken out from http://reviews.llvm.org/D11167)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242160
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David Blaikie [Tue, 14 Jul 2015 16:38:30 +0000 (16:38 +0000)]
Add default value for Args parameter of IRBuilder::CreateCall
Convenient for calls to zero-argument functions.
Patch by servuswiegehtz at yahoo.de
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242159
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Rafael Espindola [Tue, 14 Jul 2015 16:34:23 +0000 (16:34 +0000)]
Sleep for 2.1 seconds to see if that makes the test stable on windows.
Might fix pr24106.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242158
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Hans Wennborg [Tue, 14 Jul 2015 16:27:16 +0000 (16:27 +0000)]
Allocate the IntervalMap in ELF.h on the heap to work around MSVC alignment bug (PR24113)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242157
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Rafael Espindola [Tue, 14 Jul 2015 16:02:40 +0000 (16:02 +0000)]
llvm-ar: print an error when the requested member is not found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242156
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Rafael Espindola [Tue, 14 Jul 2015 15:22:42 +0000 (15:22 +0000)]
Use a range loop. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242153
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JF Bastien [Tue, 14 Jul 2015 15:10:34 +0000 (15:10 +0000)]
Revert "Fix `llvm-config` to emit the linker flag for the combined shared object built by autoconfig/make instead of the individual components."
This reverts commit
01446706b4c0a86bb64768f307079cab5c514aa3.
Causes breakage, seems to be related to 'svn' in the file's name:
CC=gcc CXX=g++ \
../llvm/configure \
--prefix=/usr \
--sysconfdir=/etc \
--enable-shared \
--enable-libffi \
--enable-targets=all \
--disable-assertions \
--with-python=/usr/bin/python2 \
--enable-optimized
make REQUIRES_RTTI=1 ENABLE_PIC=1
results:
llvm[2]: Linking Release unit test Support (without symbols)
llvm[2]: ======= Finished Linking Release Unit test Support (without symbols)
make[3]: Entering directory '/build/llvm-svn/src/build/bindings/ocaml/llvm'
make[3]: *** No rule to make target '/build/llvm-
svn/src/build/Release/lib/ocaml/libLLVM-3.7.0svn.so', needed by 'build-
deplibs'. Stop.
make[3]: *** Waiting for unfinished jobs....
llvm[3]: Compiling llvm_ocaml.c for Release build
make[3]: Leaving directory '/build/llvm-svn/src/build/bindings/ocaml/llvm'
/build/llvm-svn/src/llvm/Makefile.rules:880: recipe for target 'all' failed
/build/llvm-svn/src/llvm/Makefile.rules:965: recipe for target 'all' failed
Differential Revision: http://reviews.llvm.org/D10716
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242152
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Rafael Espindola [Tue, 14 Jul 2015 15:06:18 +0000 (15:06 +0000)]
Rename a test. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242151
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Alexandros Lamprineas [Tue, 14 Jul 2015 14:34:06 +0000 (14:34 +0000)]
Caused regressions: compile Release+Asserts failed on clang-native-arm-cortex-a9
Revert "-Added API for retrieving the default FPU of a CPU from TargetParser."
This reverts commit
01199ab0c6ff2d5c4f6b2c05a95ec011e41c4669.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242147
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Tom Stellard [Tue, 14 Jul 2015 14:15:03 +0000 (14:15 +0000)]
AMDGPU/SI: Add support for shrinking v_cndmask_b32_e32 instructions
Reviewers: arsenm
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11061
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242146
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Aaron Ballman [Tue, 14 Jul 2015 14:14:00 +0000 (14:14 +0000)]
Silencing two MSVC warnings; 'argument' : truncation from 'unsigned int' to 'int16_t' and truncation of constant value. NFC intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242145
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Alexandros Lamprineas [Tue, 14 Jul 2015 13:20:48 +0000 (13:20 +0000)]
-Added API for retrieving the default FPU of a CPU from TargetParser.
-Implemented as a table lookup.
Change-Id: Ibf7217f6bd2769e9c06835a5aede3d072dee6757
Phabricator: http://reviews.llvm.org/D11100
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242141
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Daniel Sanders [Tue, 14 Jul 2015 12:24:22 +0000 (12:24 +0000)]
[mips] Fix li/la differences between IAS and GAS.
Summary:
- Signed 16-bit should have priority over unsigned.
- For la, unsigned 16-bit must use ori+addu rather than directly use ori.
- Correct tests on 32-bit immediates with 64-bit predicates by
sign-extending the immediate beforehand. For example, isInt<16>(0xffff8000)
should be true and use addiu.
Also split li/la testing into separate files due to their size.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10967
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242139
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Chandler Carruth [Tue, 14 Jul 2015 08:42:39 +0000 (08:42 +0000)]
[PM/AA] Reformat GlobalsModRef so that subsequent patches I make here
don't continually introduce formatting deltas. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242129
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Petr Pavlu [Tue, 14 Jul 2015 08:00:34 +0000 (08:00 +0000)]
Fix comment typo
Test commit access.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242128
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David Majnemer [Tue, 14 Jul 2015 06:19:58 +0000 (06:19 +0000)]
[SROA] Don't de-atomic volatile loads and stores
Volatile loads and stores are made visible in global state regardless of
what memory is involved. It is not correct to disregard the ordering
and synchronization scope because it is possible to synchronize with
memory operations performed by hardware.
This partially addresses PR23737.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242126
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Yaron Keren [Tue, 14 Jul 2015 05:51:05 +0000 (05:51 +0000)]
Generate correct asm info for mingw and cygwin ARM targets.
http://reviews.llvm.org/D11075
Patch by Martell Malone
Reviewed by Reid Kleckner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242123
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NAKAMURA Takumi [Tue, 14 Jul 2015 05:12:53 +0000 (05:12 +0000)]
[CMake] Unbreak add_llvm_external_project when external projects are specified.
LLVM_EXTERNAL_*_SOURCE_DIR is reset as PATH with set(CACHE PATH).
Then the CACHE PATH variable, LLVM_EXTERNAL_*_SOURCE_DIR, is normalized as
${CMAKE_SOURCE_DIR}/${path_var} if ${path_var} is relative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242120
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NAKAMURA Takumi [Tue, 14 Jul 2015 04:03:49 +0000 (04:03 +0000)]
Prune trailing whitespaces and CRs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242117
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NAKAMURA Takumi [Tue, 14 Jul 2015 03:07:06 +0000 (03:07 +0000)]
Give an explicit triple to llvm/test/CodeGen/X86/pr13577.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242111
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Matthias Braun [Tue, 14 Jul 2015 02:09:57 +0000 (02:09 +0000)]
Revert "LegalizeDAG: Fix and improve FCOPYSIGN/FABS legalization"
Accidental commit, needs review first.
This reverts commit r242107.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242108
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Matthias Braun [Tue, 14 Jul 2015 02:08:26 +0000 (02:08 +0000)]
LegalizeDAG: Fix and improve FCOPYSIGN/FABS legalization
- Factor out code to query and modify the sign bit of a floatingpoint
value as an integer. This also works if none of the targets integer
types is big enough to hold all bits of the floatingpoint value.
- Legalize FABS(x) as FCOPYSIGN(x, 0.0) if FCOPYSIGN is available,
otherwise perform bit manipulation on the sign bit. The previous code
used "x >u 0 ? x : -x" which is incorrect for x being -0.0! It also
takes 34 instructions on ARM Cortex-M4. With this patch we only
require 5:
vldr d0, LCPI0_0
vmov r2, r3, d0
lsrs r2, r3, #31
bfi r1, r2, #31, #1
bx lr
(This could be further improved if the compiler would recognize that
r2, r3 is zero).
- Only lower FCOPYSIGN(x, y) = sign(x) ? -FABS(x) : FABS(x) if FABS is
available otherwise perform bit manipulation on the sign bit.
- Perform the sign(x) test by masking out the sign bit and comparing
with 0 rather than shifting the sign bit to the highest position and
testing for "<s 0". For x86 copysignl (on 80bit values) this gets us:
testl $32768, %eax
rather than:
shlq $48, %rax
sets %al
testb %al, %al
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242107
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Matthias Braun [Tue, 14 Jul 2015 02:08:23 +0000 (02:08 +0000)]
X86: Check output of x86 copysignl testcase.
This makes the changes in an upcoming patch visible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242106
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Andrew Wilkins [Tue, 14 Jul 2015 01:23:06 +0000 (01:23 +0000)]
Add capability to get and set the personalitty function from the C API
Summary:
The capability was lost with D10429 where the personality function was set at function level rather than landing pad level. Now there is no way to get/set the personality function from the C API. That is a problem.
Note that the whole thing could be avoided by improving the C API testing, as started by D10725
Reviewers: chandlerc, bogner, majnemer, andrew.w.kaylor, rafael, rnk, axw
Subscribers: rafael, llvm-commits
Differential Revision: http://reviews.llvm.org/D10946
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242104
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Chris Bieneman [Tue, 14 Jul 2015 01:19:07 +0000 (01:19 +0000)]
[CMake] Forgot to quote the first part of STREQUAL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242103
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Chris Bieneman [Tue, 14 Jul 2015 01:17:43 +0000 (01:17 +0000)]
[CMake] We shouldn't be storing values in the cache unless they actually need CMake cache behavior.
add_llvm_external_project puts LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR into the cache even if it is just the in-tree default path. This causes all sorts of oddness, and makes it so that I can't change the behavior of this variable.
This patch never puts LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR into the cache. It will only end up in the cache if it is specified on the command line, which is the correct behavior.
There is also a temporary change to remove non-default values from the cache if they are already present. This should have the impact of cleaning out unncecissary values from the caches on the buildbots and people's local build directories. This part of the change is marked with a TODO and can be removed in a few days.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242102
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Rafael Espindola [Tue, 14 Jul 2015 01:06:16 +0000 (01:06 +0000)]
Add a herper function. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242100
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Alex Lorenz [Tue, 14 Jul 2015 00:26:26 +0000 (00:26 +0000)]
MIR Serialization: Serialize the variable sized stack objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242095
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Reid Kleckner [Tue, 14 Jul 2015 00:11:08 +0000 (00:11 +0000)]
Update enforceKnownAlignment after the isWeakForLinker semantic change
Previously we would refrain from attempting to increase the linkage of
available_externally globals because they were considered weak for the
linker. Now they are treated more like a declaration instead of a weak
definition.
This was causing SSE alignment faults in Chromuim, when some code
assumed it could increase the alignment of a dllimported global that it
didn't control. http://crbug.com/509256
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242091
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Alex Lorenz [Mon, 13 Jul 2015 23:24:34 +0000 (23:24 +0000)]
MIR Serialization: Serialize the sub register indices.
This commit serializes the sub register indices from the register machine
operands.
Reviewers: Duncan P. N. Exon Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242084
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Rafael Espindola [Mon, 13 Jul 2015 23:14:26 +0000 (23:14 +0000)]
Add missing file.
Sorry about that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242083
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Rafael Espindola [Mon, 13 Jul 2015 23:07:05 +0000 (23:07 +0000)]
Fix reading archive members with / in the name.
This is important for thin archives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242082
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Bill Schmidt [Mon, 13 Jul 2015 22:58:19 +0000 (22:58 +0000)]
[PPC64LE] More improvements to VSX swap optimization
This patch allows VSX swap optimization to succeed more frequently.
Specifically, it is concerned with common code sequences that occur
when copying a scalar floating-point value to a vector register. This
patch currently handles cases where the floating-point value is
already in a register, but does not yet handle loads (such as via an
LXSDX scalar floating-point VSX load). That will be dealt with later.
A typical case is when a scalar value comes in as a floating-point
parameter. The value is copied into a virtual VSFRC register, and
then a sequence of SUBREG_TO_REG and/or COPY operations will convert
it to a full vector register of the class required by the context. If
this vector register is then used as part of a lane-permuted
computation, the original scalar value will be in the wrong lane. We
can fix this by adding a swap operation following any widening
SUBREG_TO_REG operation. Additional COPY operations may be needed
around the swap operation in order to keep register assignment happy,
but these are pro forma operations that will be removed by coalescing.
If a scalar value is otherwise directly referenced in a computation
(such as by one of the many XS* vector-scalar operations), we
currently disable swap optimization. These operations are
lane-sensitive by definition. A MentionsPartialVR flag is added for
use in each swap table entry that mentions a scalar floating-point
register without having special handling defined.
A common idiom for PPC64LE is to convert a double-precision scalar to
a vector by performing a splat operation. This ensures that the value
can be referenced as V[0], as it would be for big endian, whereas just
converting the scalar to a vector with a SUBREG_TO_REG operation
leaves this value only in V[1]. A doubleword splat operation is one
form of an XXPERMDI instruction, which takes one doubleword from a
first operand and another doubleword from a second operand, with a
two-bit selector operand indicating which doublewords are chosen. In
the general case, an XXPERMDI can be permitted in a lane-swapped
region provided that it is properly transformed to select the
corresponding swapped values. This transformation is to reverse the
order of the two input operands, and to reverse and complement the
bits of the selector operand (derivation left as an exercise to the
reader ;).
A new test case that exercises the scalar-to-vector and generalized
XXPERMDI transformations is added as CodeGen/PowerPC/swaps-le-5.ll.
The patch also requires a change to CodeGen/PowerPC/swaps-le-3.ll to
use CHECK-DAG instead of CHECK for two independent instructions that
now appear in reverse order.
There are two small unrelated changes that are added with this patch.
First, the XXSLDWI instruction was incorrectly omitted from the list
of lane-sensitive instructions; this is now fixed. Second, I observed
that the same webs were being rejected over and over again for
different reasons. Since it's sufficient to reject a web only once, I
added a check for this to speed up the compilation time slightly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242081
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Rafael Espindola [Mon, 13 Jul 2015 22:01:02 +0000 (22:01 +0000)]
Use std::make_tuple to reduce code duplication.
Thanks to David Blaikie for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242074
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Pete Cooper [Mon, 13 Jul 2015 21:50:35 +0000 (21:50 +0000)]
Remove unnecessary lines from the test in r242068.
This test case was breaking the hexagon elf bot. The failing lines
were actually unnecessary as checking that the store still reads the
correct value demonstrates that everything is working fine now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242073
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Nico Weber [Mon, 13 Jul 2015 21:33:21 +0000 (21:33 +0000)]
Reduce memory usage of ComputeEditDistance() by (almost) 50%
ComputeEditDistance() currently keeps two rows of the edit distance matrix in
memory. That's unnecessary, one row plus one additional element are sufficient.
With this change, strings up to 64 chars can be processed without going to the
heap, compared to 32 chars previously. (But the main motivation is that the
code gets a bit simpler.)
No intended behavior change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242069
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Pete Cooper [Mon, 13 Jul 2015 21:25:33 +0000 (21:25 +0000)]
Loop idiom recognizer was replacing too many uses of popcount.
When spotting that a loop can use ctpop, we were incorrectly replacing all uses of a value with a value derived from ctpop.
The bug here was exposed because we were replacing a use prior to the ctpop with the ctpop value and so we have a use before def, i.e., we changed
%tobool.5 = icmp ne i32 %num, 0
store i1 %tobool.5, i1* %ptr
br i1 %tobool.5, label %for.body.lr.ph, label %for.end
to
store i1 %1, i1* %ptr
%0 = call i32 @llvm.ctpop.i32(i32 %num)
%1 = icmp ne i32 %0, 0
br i1 %1, label %for.body.lr.ph, label %for.end
Even if we inserted the ctpop so that it dominates the store here, that would still be incorrect. The store doesn’t want the result of ctpop.
The fix is very simple, and involves replacing only the branch condition with the ctpop instead of all uses.
Reviewed by Hal Finkel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242068
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Reid Kleckner [Mon, 13 Jul 2015 20:41:46 +0000 (20:41 +0000)]
[WinEH] Emit the LSDA even if no lpads remain but outlining occurred
The outlined funclets call intrinsics which reference labels from the
LSDA. This situation can easily arise in small functions with a single
cleanup at -O0, where Clang marks a definition as nounwind, and then
WinEHPrepare "discovers" that the landingpad is dead by accident and
deletes it.
We now need to ask the LLVM IR Function for it's personality directly,
rather than going through MachineModuleInfo.
Fixes PR23892.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242063
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Benjamin Kramer [Mon, 13 Jul 2015 20:38:16 +0000 (20:38 +0000)]
[Hexagon] Move BitTracker into the llvm namespace and remove redundant qualifications
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242062
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Rafael Espindola [Mon, 13 Jul 2015 20:38:09 +0000 (20:38 +0000)]
Add support deterministic output in llvm-ar and make it the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242061
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Chris Bieneman [Mon, 13 Jul 2015 20:30:58 +0000 (20:30 +0000)]
Revert "[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working."
Reverting r242059 because it broke some bots. I'm attempting to reproduce the failures now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242060
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Chris Bieneman [Mon, 13 Jul 2015 20:23:15 +0000 (20:23 +0000)]
[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.
Summary:
This change re-lands r241621, with an additional fix that was required to allow tool sources to live outside the llvm checkout. It also no longer renames LLVM_EXTERNAL_*_SOURCE_DIR. This change was reverted in r241663, because it renamed several variables of the format LLVM_EXTERNAL_*_* to LLVM_TOOL_*_*.
Original Summary:
The tools CMakeLists file already had implicit tool registration, but there were a few things off about it that needed to be altered to make it work. This change addresses all that. The changes in this patch are:
* factored out canonicalizing tool names from paths to CMake variables * removed the LLVM_IMPLICIT_PROJECT_IGNORE mechanism in favor of LLVM_EXTERNAL_${nameUPPER}_BUILD which I renamed to LLVM_TOOL_${nameUPPER}_BUILD because it applies to internal and external tools
* removed ignore_llvm_tool_subdirectory() in favor of just setting LLVM_TOOL_${nameUPPER}_BUILD to Off
* Added create_llvm_tool_options() to resolve a bug in add_llvm_external_project() - the old LLVM_EXTERNAL_${nameUPPER}_BUILD would not work on a clean CMake directory because the option could be created after it was set in code.
* Removed all but the minimum required calls to add_llvm_external_project from tools/CMakeLists.txt
Differential Revision: http://reviews.llvm.org/D10665
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242059
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Keno Fischer [Mon, 13 Jul 2015 19:41:51 +0000 (19:41 +0000)]
[CMake] Add missing DebugInfo libraries to llvm-shlib
Reviewers: beanz
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11128
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242054
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Matt Arsenault [Mon, 13 Jul 2015 19:08:36 +0000 (19:08 +0000)]
AMDGPU: Minor cleanups to always inline pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242053
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David Majnemer [Mon, 13 Jul 2015 18:51:15 +0000 (18:51 +0000)]
[MC] Correctly escape .safeseh's symbol
This fixes PR24107.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242050
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Mark Heffernan [Mon, 13 Jul 2015 18:33:21 +0000 (18:33 +0000)]
Enable partial and runtime loop unrolling for NVPTX.
Enable partial and runtime loop unrolling for NVPTX backend via
TTI::UnrollingPreferences with a small threshold. This partially unrolls
small loops which are often unrolled by the PTX to SASS compiler
and unrolling earlier can be beneficial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242049
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Mark Heffernan [Mon, 13 Jul 2015 18:26:27 +0000 (18:26 +0000)]
Enable runtime unrolling with unroll pragma metadata
Enable runtime unrolling for loops with unroll count metadata ("#pragma unroll N")
and a runtime trip count. Also, do not unroll loops with unroll full metadata if the
loop has a runtime loop count. Previously, such loops would be unrolled with a
very large threshold (pragma-unroll-threshold) if runtime unrolled happened to be
enabled resulting in a very large (and likely unwise) unroll factor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242047
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Adrian Prantl [Mon, 13 Jul 2015 18:25:29 +0000 (18:25 +0000)]
Service the doxygen comments in DwarfUnit and DwarfDebug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242046
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Alex Lorenz [Mon, 13 Jul 2015 18:07:26 +0000 (18:07 +0000)]
MIR Serialization: Serialize the fixed stack objects.
This commit serializes the fixed stack objects, including fixed spill slots.
The fixed stack objects are serialized using a YAML sequence of YAML inline
mappings. Each mapping has the object's ID, type, size, offset, and alignment.
The objects that aren't spill slots also serialize the isImmutable and isAliased
flags.
The fixed stack objects are a part of the machine function's YAML mapping.
Reviewers: Duncan P. N. Exon Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242045
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Reid Kleckner [Mon, 13 Jul 2015 17:55:14 +0000 (17:55 +0000)]
[WinEH] Strip the \01 character from the __CxxFrameHandler3 thunk name
Add another C++ 32-bit EH table test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242044
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Benjamin Kramer [Mon, 13 Jul 2015 17:21:31 +0000 (17:21 +0000)]
Remove macro guards for extern template instantiations.
This is a C++11 feature that both GCC and MSVC have supported as ane extension
long before C++11 was approved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242042
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Benjamin Kramer [Mon, 13 Jul 2015 17:21:14 +0000 (17:21 +0000)]
Avoid using Loop::getSubLoopsVector.
Passes should never modify it, just use the const version. While there
reduce copying in LoopInterchange. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242041
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James Y Knight [Mon, 13 Jul 2015 16:36:22 +0000 (16:36 +0000)]
Fix handling of the 'n' asm constraint with invalid operands.
It had accidently accepted a symbol+offset value (and emitted
incorrect code for it, keeping only the offset part) instead of
properly reporting the constraint as invalid.
Differential Revision: http://reviews.llvm.org/D11039
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242040
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Tom Stellard [Mon, 13 Jul 2015 15:47:57 +0000 (15:47 +0000)]
AMDGPU/SI: Select mad patterns to v_mac_f32
The two-address instruction pass will convert these back to v_mad_f32
if necessary.
Differential Revision: http://reviews.llvm.org/D11060
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242038
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Logan Chien [Mon, 13 Jul 2015 15:37:30 +0000 (15:37 +0000)]
ARM: Fix cttz expansion on vector types.
The 64/128-bit vector types are legal if NEON instructions are
available. However, there was no matching patterns for @llvm.cttz.*()
intrinsics and result in fatal error.
This commit fixes the problem by lowering cttz to:
a. ctpop((x & -x) - 1)
b. width - ctlz(x & -x) - 1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242037
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Scott Douglass [Mon, 13 Jul 2015 15:31:48 +0000 (15:31 +0000)]
[ARM] Handle commutativity when converting to tADDhirr in Thumb2
Also, run thumb_rewrite.s tests in Thumb2 now that they pass.
Differential Revision: http://reviews.llvm.org/D11132
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242036
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Scott Douglass [Mon, 13 Jul 2015 15:31:40 +0000 (15:31 +0000)]
[ARM] Add Thumb2 ADD with SP narrowing from 3 operand to 2
Differential Revision: http://reviews.llvm.org/D11131
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242035
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Scott Douglass [Mon, 13 Jul 2015 15:31:33 +0000 (15:31 +0000)]
[ARM] Small refactor of tryConvertingToTwoOperandForm (nfc)
Also, add more Thumb2 ADD tests requested during review of
http://reviews.llvm.org/D11053.
Differential Revision: http://reviews.llvm.org/D11130
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242034
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Silviu Baranga [Mon, 13 Jul 2015 14:48:24 +0000 (14:48 +0000)]
Cleanup after r241809 - remove uncessary call to std::sort
Summary:
The iteration order within a member of DepCands is deterministic
and therefore we don't have to sort the accesses within a member.
We also don't have to copy the indices of the pointers into a
vector, since we can iterate over the members of the class.
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11145
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242033
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Rafael Espindola [Mon, 13 Jul 2015 14:43:33 +0000 (14:43 +0000)]
Remove unused variable.
Sorry I missed it in the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242032
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Rafael Espindola [Mon, 13 Jul 2015 14:39:02 +0000 (14:39 +0000)]
Aliases don't have available_externally linkage.
Allowing that is probably a good idea, but currently we don't, so
this is dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242031
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Rafael Espindola [Mon, 13 Jul 2015 14:18:22 +0000 (14:18 +0000)]
Don't change the visibility when converting a definition to a declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242030
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Aaron Ballman [Mon, 13 Jul 2015 14:04:30 +0000 (14:04 +0000)]
Removing several -Wunused-but-set-variable warnings; NFC intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242028
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Rafael Espindola [Mon, 13 Jul 2015 13:55:18 +0000 (13:55 +0000)]
Print the visibility of available_externally functions.
We were already printing it for declarations, but not available_externally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242027
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Manuel Klimek [Mon, 13 Jul 2015 13:50:55 +0000 (13:50 +0000)]
Revert r241981 "Revert "Revert r236894 "[BasicAA] Fix zext & sext handling"""
The repros from PR23626 still fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242025
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Elena Demikhovsky [Mon, 13 Jul 2015 13:26:20 +0000 (13:26 +0000)]
AVX-512: Added all AVX-512 forms of Vector Convert for Float/Double/Int/Long types.
In this patch I have only encoding. Intrinsics and DAG lowering will be in the next patch.
I temporary removed the old intrinsics test (just to split this patch).
Half types are not covered here.
Differential Revision: http://reviews.llvm.org/D11134
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242023
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Pawel Bylica [Mon, 13 Jul 2015 11:25:56 +0000 (11:25 +0000)]
[llvm-stress] Remove unneeded llvm:: prefix. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242020
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Daniel Sanders [Mon, 13 Jul 2015 09:24:21 +0000 (09:24 +0000)]
[mips] Explained the 'w' modifier in the Inline Assembler documentation.
It exists for compatibility with GCC which requires it to print MSA registers
for the 'f' constraint. Although LLVM doesn't need it, the 'w' modifier should
still be used for portability between the two compilers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242015
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Jingyue Wu [Mon, 13 Jul 2015 03:28:53 +0000 (03:28 +0000)]
[LSR] don't attempt to promote ephemeral values to indvars
Summary:
This at least saves compile time. I also encountered a case where
ephemeral values affect whether other variables are promoted, causing
performance issues. It may be a bug in LSR, but I didn't manage to
reduce it yet. Anyhow, I believe it's in general not worth considering
ephemeral values in LSR.
Reviewers: atrick, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11115
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242011
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David Majnemer [Mon, 13 Jul 2015 01:15:53 +0000 (01:15 +0000)]
[InstSimplify] Teach InstSimplify how to simplify extractelement
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242008
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David Majnemer [Mon, 13 Jul 2015 01:15:46 +0000 (01:15 +0000)]
[InstSimplify] Teach InstSimplify how to simplify extractvalue
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242007
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Yaron Keren [Sun, 12 Jul 2015 20:40:41 +0000 (20:40 +0000)]
Fix PR24099 reported by Tomas Brukner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241997
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Renato Golin [Sun, 12 Jul 2015 18:16:40 +0000 (18:16 +0000)]
[ARM] Add support for nest attribute using r12
Register r12 ('ip') is used by GCC for this purpose
and hence is used here. As discussed on the GCC mailing
list, the register choice is an ABI issue and so
choosing the same register as GCC means
__builtin_call_with_static_chain is compatible.
A similar patch has just gone in the AArch64 backend,
so this is just the ARM counterpart, following the same
discussion.
Patch by Stephen Cross.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241996
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Simon Pilgrim [Sun, 12 Jul 2015 17:40:49 +0000 (17:40 +0000)]
[X86][SSE] Tidied up vector extend/truncation tests. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241995
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Simon Pilgrim [Sun, 12 Jul 2015 16:44:11 +0000 (16:44 +0000)]
[X86][SSE] (V)PMINSB is commutable.
(V)PMINSB is no different to the other (V)PMIN/(V)PMAX B/D/W instructions - it is fully commutable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241994
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Simon Pilgrim [Sun, 12 Jul 2015 11:17:33 +0000 (11:17 +0000)]
Trim trailing whitespaces. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241990
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Simon Pilgrim [Sun, 12 Jul 2015 11:15:19 +0000 (11:15 +0000)]
[X86][SSE] Vectorized v4i32 non-uniform shifts.
While the v4i32 shl operation is already vectorized using a cvttps2dq/pmulld pattern, the lshr/ashr opeations are still scalarized.
This patch adds vectorization support for non-uniform v4i32 shift operations - it splats constant shift amounts to allow them to use the immediate sse shift instructions, or extracts/zero-extends non-constant shift amounts. The individual results are then blended together.
Differential Revision: http://reviews.llvm.org/D11063
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241989
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